Her contract had ended this month and her last appearance on the network was in mid-December.

Palin, 48, received mixed reviews as a pundit, mainly along partisan lines, but she continues to be lightning rod for conversation no matter what she does. For instance, she's spent months in the Hollywood spotlight in absentia thanks to the success of the HBO movie Game Change.

"Now with you and Tina Fey, we have three of the most incredible impersonations of Sarah Palin, counting Sarah Palin," director Jay Roach praised Julianne Moore, who portrayed Palin (also to mixed reviews, mainly along partisan lines), when Game Change won the Golden Globe for best TV movie/miniseries earlier this month.

Palin herself remained pretty mum on Moore's performance, but her daughter Bristol said in October that her mom is "way hotter" than the actress.

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